Houyuan VOIP PBX,supports 4 PSTN phone and 128 IP phone

Model Number: IPPBX-04-#0392 Brand Name: Houyuan Key Specifications/Special Features: Basic featuresBlacklist;Caller ID;Call back;Call detail records (CDR);Call pickup (Group pickup & directed pickup);Call parking;Call queues;Call recording;Call routing;
Call Transfer (Blind Transfer & Attend Transfer);
Call waiting;
Conference;
Do Not Disturb (DND);
Follow me;
Interactive voice response (IVR);
Intercom/paging;
Music on hold (MoH);
Ring group;
Skypy Integration (Skype for SIP);
Advanced Applications
Call recording;
Direct Inward System Access (DISA);
Dual-OS redundancy;
External storage supported;
IP restriction;
Personal web portal;
Storage quota privilege;
Tcpdump diagnostic tool;
Auto provisioning;
Customized dial plan;
Product parameters
SIP version: SIP(RFC3216);
Concurrent calls : 8;
MAX extension registration : 128;
Audio and Video
Audio Codec: G711(A/μ), G.722, G726, G729，GSM，Speex，ADPCM
Video Codec: H261，H263，H263P, H264;
Hardware
CPU: 400MHz
SDRAM: 64M
NAND Flash: 256M
WAN: 1 10/100Mbps
PSTN: 4RJ11
Power consumption: 5W
Network
DHCH server/client: Yes;
DDNS: Yes;
Static IP: Yes;
VLAN (802.1Q): Yes;
VPN: Yes (PPTP);
Security: Firewall;
Installation & configuration
Installation: Desktop or Wall mount;
Configuration: Web based configuration
Package
Storage temperature: 20°C - 65°C (-4°F - 149°F)
Operating temperature: 10 - 90%, non-condensing
Operating humidity : 0°C - 40°C (32°F - 104°F)
Dimension : 220 x 120 x 28mm
Weight: 1.2Kg
Workable modules